Machine for trimming and slitting packs of metal sheets



(No ModeL) B Sheets-Sheet I.

J. G. HODGSON. MACHINE EUR TRIMMINGAND SLITTING PACKS 0F METAL SHEETS.

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3 Sheets--Sheet 2.

(No Moda.)

J. G. HODGSON. MACHINE POR TRIMMING AND SLITTING PACKS 0F METAL SHEETS..

Patented May 12, 1896.

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ANDREW B GRAHAM. FNOTGUTHQWASHINGUKDL (No Model.) 3 Sheets-Sheet 3. A

J. G. HODGSN. A MACHINE EOE TEIMMING AND SLITTING PACKS 0E METAL SHEETS. No. 560,064. Patented May 12, 1896.

H/ 7- TOH/VEYS ANDREW BJSRMAM PHUTu-UTNQWASKIMGTDMJ C UNITED STATES PATENT OEETCE.

JOHN G. IIODGSON, OF MAYIVOOD, ILLINOIS, ASSIGNOR TO EDVIN NORTON, OF SAME PLACE, AND OLIVER W. NORTON, OF CHICAGO, ILLINOIS.

MACHINE FOR TRIMMING AND SLITTING PACKS OF METAL SHEETS.

SPECIFICATION forming part of Letters Patent No. 560,064, dated May 12, 1896. Application filed December 5,1894. Serial No. 530,883. (No model.)

To @ZZ whom, it may concern.-

Be it known that I, JOHN G. Hoiocson, a citizen of the United States, residing in Maywood, in the county of Cook and State of Illinois, have invented a new and useful Improvement in Machines for Trimming and Slitting Packs of Metal Sheets, of which the following is a specification.

My invention relates to machines for trimming or cutting packs of metal sheets.

The object of my invention is to produce a machine of a simple and durable construction, by means of which the end edges of a p. ek of metal sheets may be trimmed and squared in respect to the already trimmed side edges of the pack and the pack of sheets simultaneously slitted into proper size for tinning or for use.

My invention consists in the novel construction of parts and devices and novel combinations of parts ar d devices herein shown and described, and particularly pointed out iu the claims.

In the accompanying drawings, forming a part of this specification, and in which similar letters of reference indicate like parts in all the views, Figure l is a plan view of a machine embodying' my invention. Fig. 2 is a vertical section on line 2 2 of Fig. l. Fig. is an enlarged detail plan view of parts hereinafter to be described. Figs. 4, 5, 6, 7, and S are vertical detail sections on lines 4 4, 5 5, o 6, '7 7, and S S, respectively, of Fig. l. Fig. 0 is an end elevation of the housing for the shafts of the rotary cutters. Fig. 10 is a plan view of one of the rotary cutters, its shaft, and the housing therefor. Fig. 11 is a vertical section of one of the middle bearin g-blocks for the cutter-shaft. Figs. 1:2 and 13 are detail views of parts hereinafter to be described.

In the drawings, A represents the frame of the machine; B B', the rotary cutters; B2, the shafts to which the cutters are secured; and C C and C C are the feed-rollers, one pair in front and one at the rear of the rotary cutters.

D is a movable feed-table, consisting, preferably, of a series of constantly-revolvin g rollers d d.

F is a movable gage or guide at one end of the revolving roller feed-table D, by means of which the operator is enabled to adjust the position of the pack of sheets on the feedtable, so as to bring its end edge into proper position in respect to the trimming-cutters at that end of the machine.

The movable gage or guide F is pivoted to a bracket or plate f, secured to the frame, and it is operated by a hand-lever f through the connecting-rod f2. The lever f is provided with a pawl f i, operated by a lever f4, and which engages a stationary ratchet f5, by means of which the operator may iiX the movable gage F in any position necessary to properly adjust the pack in respect to the rotary cutters. A pin or stop f, fixed to the ratchet f5, limits the movement of the lever f so that the movable gage F cannot be moved too far. The movable gage F may also be adjusted in position by reason of the bracket or plate f, upon which it is pivotally mounted, being adjustably secured to the frame of the machine by bolts f7, passing through slots f8 in the plate f.

G is a yielding or movable stop or gage inserted between the roller feed-table D and the front pair of feed-rollers C C in front of the rotary cutters. This movable or yielding gage may be of any suitable construction, but consists, preferably, of a series of fingers g, adjustably secured to a rock-shaft g', so that they may set closer together or farther apart to accommodate packs of different lengths, which rock-shaft is furnished with a weighted arm g2, by which the guide is held normally in position in front of the side edge of the pack and permitted to yield or move automatically out of the Way of the pack as it advances into the bite of the feed-rollers C C. This automatically-movable gage G serves to straighten the pack on the roller feed-table D, and, in connection with the feeder K, brings its front edge parallel to the axis of the feedrollers C C and rotary cutters B B. The shaft g' is journaled in suitable bearings g3 on the frame of the machine. The feeder K, by which the pack of sheets is pushed or fed forward into the bite of the feed-rollers C C, may be of any suitable construction, but consists, preferably, of a pusher-bar adjustably iiXed by adjusting-screws K to sliding cross heads or bars K2, which reciprocate upon suitable guides or Ways K3 K3, secured to the frame between certain of the rollers d d of the roller feed-table D. The sliding bars or crossheads K2 are operated by the attendant by IOO IOS

means of a treadle or lever K4, furnished with a spring K5 and connected by a rod Ku with a bent lever K7, which is connected by a link K9 with the sliding bar or cross-head K2.

The individual rollers d of the roller feedtable D are journaled in suitable bearings d on the frame of the machine, and are continually revolved by means of bevel-gears d2 on their shafts meshing with bevel-gears d2 on the driving-shaft E.

There are three pairs of rotary cutters B B, the two extreme pairs for cutting or trimming the edges of the pack and the middle pair or one or more middle pairs for slitting the pack into sheets of the desired size. To give proper support to the shafts B2 of the rotary cutters at the middle and thus prevent the shafts from springing and to cause the middle pair of cutters to operate properly, I provide the shafts with middle bearings B2 B3 as well as end bearings BY1 B". Each of the middle bearings B3 is mounted movably in a housing Bi", so that it may be moved out of the way when it is desired to slip the rotary cutters off their shafts for grinding or replacing. To facilitate this, each of the bearings B3 is furnished with a lever B, connected to the bearing by a link B2, by means of which the bearing can be conveniently withdrawn while the cutters are being slipped by the same. To secure the bearing firmly and quickly in place in its housing B5, I provide a wedge or tapering key B8 with an adjustable stop-screw B2, so that by pulling this tapering key out the bearing B3 is permitted to be lifted in its housing by its lever, while the stop-screw B9 enables the tapering key to be again inserted in the saine position as before, thus saving the necessity of adjusting the bearing-block in position every time. To permit the rotary cutters B B' to be readily removed from their shafts B2, the housing B10 is provided with removable gibs B1l B11, removably secured in place by bolts B12, and the opening in the housing B10 is made large enough to permit the rotary cutters to be slipped olf the shafts B2 when the gibs B11 are removed.

The rear pair of feed-rollers C C are journaled upon sliding bearings C2 C2, which are reciprocated on suitable guides C"L C4 on the frame of the machine by means of screws C2 C? geared together by a chain C", one of the screws being furnished with a hand-wheel C7. By this means the feed or discharge rollers C C may be removed or withdrawn from the rotary cutter-shafts B2 B2 when it is desired to remove the rotarycutters from their shafts, and this also enables the withdrawing-rollers C C' to be accurately adjusted into position to grasp the pack or sheet just as its rear edge leaves the rotary cutters.

From the driving-shaft II motion is communica-ted to one of the shafts B2 by the gears E E2. The two shafts B2 are geared together by gears E1 E4, and the feed-roller shafts are driven by gears E, and the shafts of the feed-rollers C C by the gears E7 E8 E.

M is a stationary guard, adj ustably fixed to the frame to guide the ent-rance of the pack onto the rotary feed-table D.

In operation the pack of metal sheets is, by the revolving movement of the rollers of the feed-table, carried against the movable gage F at the inner end of this roller feedtable. The operator then, by means of this movable gage F, adjusts the position of the sheet longitudinally on the feed-table, so as to bring its end edges properly in line with the pairs of edge-trimming cutters B B and B B/ and at the same time, by operation of the feeder K and movable gage G, brings the pack into parallelism with the feed-rollers C C. As the roller feed-table tends to carry the pack continuously against the movable gage F, and as the operator can move the pack back in the opposite direction by this movable gage F, he is thus enabled to properly divide the surplus to be trimmed oif at the two end edges of the pack and thus trim or true both end edges of all the sheets in the pack, if that be possible. After the pack is thus properly adjusted in position to enter the feed-rollers C C the operator, by the further movement of the feeder K, forces the pack fairly and truly into the bite of the feed-rollers and through the machine.

In do not herein claim the combination with rotary cutters removably mounted on shafts and a housing for the bearings of said shafts, provided with removable gibs to permit the rotary cutters to be removed from the shafts through said housing, as such subject-matter is claimed in my companion application, Serial No. 530,882, filed of even date herewith.

I claiml. In a machine for trimming and slitting packs of metal sheets, the combination with the rotary cutters and feed-rollers of a roller feed-table, a movable gage at one end of the feed-table, a movable or yielding gage in front of the feed-rollers between the same and the feed-table, and a reciprocating feeder to force the pack ot' sheets into the bite of the feedrollers, substantially as specified.

2. The combination in a sheet-metal trimming or shearing machine with two or more pairs of opposing rotary cutters and a pair of feed-rollers parallel to the axes of the rotory cutters and between which the sheets pass, of a roller feed-table consisting of rollers transverse to the feed-rollers and rotary cutters substantially as specified.

3. The combination in a sheet-metal shearing or trimming machine, with rotary cutters and a pair of feed-rollers in front of said rotary cutters and between which the sheets pass, of a roller feed-table consisting of rollers transverse to the feed-rollers and rotary cutters, a movable gage F near one end of the roller feed-table, and means for moving said gage to move and adjust the position of the sheets in respect to the rotary cutters, substantially as specified.

4. The combination with rotary cutters and IOO IIO

feed-rollers, of a feed-table, a movable gage at one end of the table, means for moving the sheets against said gage, and a movable or yielding gage between the feed-table and the feed-rollers, substantially as specified.

5. The combination with two or more pairs of opposing rotary cutters of a feeder, means for moving the sheets to and fro longitudinally in front of said pairs of rotary cutters to divide the surplus to be trimmed off at each end, said means comprising a mechanism for moving the pack in one direction and a movable gage and a hand-lever and connections for moving the pack in the opposite direction at the will of the operator, and a movable stop or gage between the feeder and cutters, substantially as specified.

(5. rllhe combination with rotary cutters of a feeder, and a movable stop or gage between the feeder and cutters, and a movable gage F extending transversely to the rotary cutters, a hand-lever and connections for operating said movable gage, and means for moving the sheets against said movable gage F, substantially as specified.

7. The combination with rotary cutters of a roller feed-table, the individual rollers of which ext-end at right angles to the axes of the cutters, and a movable gage at the end of the roller feed-table, and a hand-lever and connections for operating said movable gage whereby the sheet-s may be moved and adj usted longitudinally in front of the cutters in both directions, substantially as specified.

S. The combination with two pairs of opposing rotary cutters of means for adjusting the pack into position parallel to the rotary cutters, and means for moving and adjusting the pack longitudinally in both directions to divide the surplus to be trimmed oft at the two edges of the pack, said means comprising a mechanism for moving the pack in one direction and a movable gage and hand-lever for moving the pack in the opposite direction at the will of the operator, substantially as specied.

0. The combination with two pairs of opposing rotary cutters of means for adjusting the pack into position parallel to the rotary cutters, and means for moving and adjusting the pack longitudinally in both directions to divide the surplus to be trimmed off at the two end edges of the pack, said means comprising a mechanism for moving the pack in one direction and a movable gage and a hand-lever for moving the pack in the opposite direction at the will of the operator, substantially as specified.

l0. The combination with rotary cutters and a pair of feed-rollers in front of said rotary cutters, of a roller feed-table, a reciprocating feeder, sliding bars or cross-heads extending between the individual rollers of the roller feed-table upon which the feeder is mounted, substantially as specified.

ll. The combination with rotary cutters and a pair of feed-rollers in front of said rotary cutters, of a roller feed-table, a reciprocating feeder, sliding bars or cross-heads eX- tending between the individual rollers of the roller feed-table upon which the feeder is mounted, and means for adjusting the feeder upon said sliding bars, substantially as specified.

l2. The combination with two pairs of opposing rotary cutters and a pair of feed-rollers parallel to the axes of the cutters, of a roller feed-table consisting of rollers transverse to the feed-rollers and rotary cutters for moving the pack longitudinally in one direction, a movable gage F near one end of the roller feed-table, and a hand-lever and connections for operating said movable gage F for moving the pack longitudinally in the other direction and thus dividing the surplus to be trimmed off at the two end edges of the pack, substantially as specified.

13. In a machine for trimming and slitting packs of metal sheets the combination of a frame with cutter-shafts B2 B2, two or more pairs of rotary cutters secured to said shafts, said shafts being furnished with intermediate bearings B3 B3 having an open space between them to permit the sheets to pass between said bearings, one of said bearings being connected to said frame above one of said shafts and the other being connected to said frame below the other shaft, substantially as specified.

14. The combination with shafts B2 B2 furnished with removable cutters B B' and intermediate bearings B2, of a housing B5 for said bearing B3 and a tapering key or wedge for holding said movable bearing in place in its housing, substantially as specified.

l5. The combination with shafts B2 B2 furnished with removable cutters B B and intermediate bearings B3, of a housing B5 for said bearing B3 and a tapering key or wedge for holding said movable bearing in place in its housing, said tapering key or wedge being provided with an adjustable stop, substantially as specified. A

16. The combination with shafts B2 B2 furnished with removable cutters B B and intermediate bearings B2, of a housing B5 for said bearing B8 and a tapering key or wedge for holding said movable bearing in place in its housing, said tapering key or wedge being provided with an adjustable stop, and a lever for moving said bearing B3, substantially as specified.

17. The combination with rotary cuttershafts B2 B2 furnished with removable rotary cutters B B', bearings for said shafts B2 B2 near the ends thereof, and an intermediate removable bearing B3, the bearings B4 at one end of said shafts being secured in a housing B provided with removable gibs B11 B11, substantially as specified.

JOI-IN G. HODGSON. iVitnesses:

H. M. MUNDAY, L. E. CURTIS.

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